Parkinson’s Disease / 2010 / Article / Tab 2

Research Article

Dual-Task Interference: The Effects of Verbal Cognitive Tasks on Upright Postural Stability in Parkinson's Disease

Table 2

Means (and standard deviations) for each postural variable, separated by group.

Healthy older adults

COPL (m)BOSml (%)BOSap (%)

No task0.79 (0.11)3.71 (1.32)8.74 (2.55)
Numerical recitation0.94 (0.15)4.23 (1.52)9.31 (3.11)
Monologue1.26 (0.23)7.35 (4.19)14.0 (6.52)

Parkinson's disease

COPL (m)BOSml (%)BOSap (%)

No task0.65 (0.11)4.11 (2.57)8.16 (2.07)
Numerical recitation0.76 (0.16)5.21 (3.87)9.54 (3.36)
Monologue0.82 (0.16)5.11 (3.03)10.20 (3.85)

Where COPL = length of centre of pressure path; BOSml = medial-lateral centre of pressure excursion range; BOSap = anterior-posterior centre of pressure excursion range.

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